Air-cleaning device for automotive motors



Jul 135 924.

Filed Dec. 5 i925 v Patented- .l'uly l5, 1%24.

valves.

rr ri LOUIS E. STONE, 0F ASHLAND, KENTUCKY.

AIR-CLEANING DEVICE FOR AUTOMOT'IVE'MOTORS.

Application filed December :3, 1923. Serial No. 678,357.

To all whom it may concern.

Be it known that I, LOUIS E. S'rorm, a citizen of the United States, and a resident of Ashland, in the county of Boyd and State certain new and.

of Kentucky, have invented useful Improvements in Air-Cleaning Devices for Automotive Motors, of which the following is a full, clear, and exact description.

The invention relates to a new and improved means for removing the dust from the carburetor air-in a highly efficient manner, and "one of the objects of the invention is to thus cleanse the intake air and thereby eliminate to a large extent the accumulation of carbon on the cylinders, pistons, and

Another object of the invention is to in- 4 crease the power and eliiciency of the motor by the purification of theair and the consequent elimination of carbon accumulation.

A further object of theiirivention is to prolong the life of the motor by keeping the same substantially free of carbon at all times.

Still another object of the invention is to produce a smoother operation of the motor resulting from the clean intake air furnished to the carburetor because of its passage through the purifier disclosed herein.

Further objects and advantages of the invention will be apparent from the following detaileddescription, when taken in connection with the accompanying which;

Figure 1 is an end elevational view of the front end of the device; I

Figure 2 is a side elevational View of the device.

spiral member or screw Figure 3 is an end elevational view of the rearend of the device. Y

Figure 4& is a vertical transverse sectional view taken on line H of Figure 5.; and

Figure '5 isa vertical longitudinal sectional view through the complete device.

Referring to the drawings more in detail, numeral 1 indicates a cylindrical casing which isopen at both ends, trated in Figure 5. Arranged within this casing and preferably, though not necessarily, extending from'end to end thereof is a 2. The inner wall of the cylindrical casing is entirely unobstructed so that the incoming air is allowed to freely follow the spiral course of the screw member.

' the pipe wall, and this dust drawings; in.

cause the dust to settle,

to the carburetor.

as clearly illus-- free and Arranged centrallyof the spiral member and extending therethrough for only a portion ofthe length of the spiral member, is a pipe 3 leading to the carburetor (not shown). In the drawings I have illustrated as extending about' two-thirds of. the length of .the spiral member, but obviously this length may be varied as desired, it may be made shorter, or it may be made to extend substantially the full 'lengthpf the spiral member. At one end of the device, I

provide a conical deflector 4, having its apex and projecting arranged centrally of,

The function of slightly into, the pipe 3. I the deflector is, of course, to reverse the direction of the incoming air, and direct it into the pipe 4, but as will appear hereinafter, this deflector may be omitted if desired. a

Itwill be understood, of course, that this device operates on'the principle of centrifugal force. Referring particularly to Figure 5, the course of the incoming air is illustrated by arrows, and it will be apparent that as the air strikes the spiral member it. will follow the course thereof, and the air thus being set into a rapidly whirling motion,.the heavier particles, such as dust, will be thrown outwardly toward the casing laden air will continue its spiral course through the device and be freely discharged at the rear end, as illustrated by the arrows. In its entire passage there is no obstruction whatever tending to and the dust laden air discharges from the rear end of the device just as freely as it enters the front end thereof.

As the dust laden air centrifugally seeks the outer portion of the device in its passage therethrough, likewise will the pure air centripetally seek the central portion of the device, and as this pure air reaches the end of the pipe 3 it will be drawn therein and pass Obviously the deflector could be eliminated and the device would function in the same manner but its use does tend to produce a more clear differentiation between the pure and the dust laden air.

The periphery of the screw member is shown as abutting against the casing, but it will be apparent that this is not essential,

for the device would operate in the same efficient manner if the screw member were spaced from the wall of the casing. It is not absolutely essential that there be a tight fit between the pipe 3 and the screw member, but it is highly desirable in order to prevent the direct passage of air along the surface of the pipe 3. The casing, spiral member, and pipe, may all be cast integral, if preferred.

In accordance with the patent statutes, I have described what I now believe to be the best embodiment of ing myself or the scope many changes and modifications may be made without departing'from the spirit of the invention; all such I aim to include in the scope of the appended claims. I

Having fully described the. invention, what I claim urifyi ng the intake ich consists in "passfrontto the rear of '1; The method of air of a carburetor, -w ink the air from the a separatonsetting the air into whirling a separator, causing the air to follow a spiral course through the separator, dis charging the outer portion of the whirling column to the atmosphere at the rear end of the separator, and causing the inner portion of the whirling column to'double back along v the interior of the incoming column and be discharged at the front of ,3. In a device of the character a casing open to the atmosphere at both ends for the .free entrance and exhaust of the air, means forsetting the air into a whirling motion, and means for discharging at the front end of the device the inner portion of the whirling column.

4. In a device of the character described, a casing open to the atmosphere at both ends for the free entrance and exhaust of the air, means for causing the incoming air to follow the invention, but I do not wish to be understood thereby as limltof the invention, as-

ing free of obstructions,

as new and desire to g by I ters Patent i terminating short of one free of obstructions,

, deflector arranged to said separator.

described,

from the front to the .said casing having at the rear end a free a spiral course, means for withdrawing the inner portion of the whirling column in a direction opposite to that of the incoming air, and means for discharging the same at the front. of the device.

5. In a device of the character described, acasing open to the atmosphere at both ends, :and the inner wall of said casing bea spiral member arranged within thecasing, and a breather tube arranged within the spiral member for carrying off the pure air.

'6. In a device of the character described,

a casing 0 on to the atmosphere at bothends, and t e inner wall of the casing being free of obstructions, a spiral member arranged within the casing, and a breather tube arranged within the spiral member for a carrying off the pure air, said breather tube end of the spiral member.

7 In a device of the character described, a casing open to the atmosphere at both ends, and the inner wall of the casin being a spiral member arranged withinthe casing, and a deflector arranged at one end of the spiral member for deflecting the inner portion of the whirling column into the interior of the spiral member.

8. In a device of the character described, a casing open to the ends, and the inner wall of the casing being free of obstructions, a spiral member arranged within the casing, a breather tubearranged within the spiral member, and a deflect the inner portion of the whirling column into the breather tube.

9. In a device of the character described, a casing, means within the casing for forming the air into a spiral column moving rear of the casing,

exit to the atmosphere for the outer portion of the column, and means for carrying off the air from the inner portion of the column and discharging the same at the front of the device.

' LOUIS'E, STONE.

atmosphere at both 

